Serena Williams has amassed many fans over the past decade as the best player in women’s tennis. But one person who isn’t a fan at all is up-and-coming Sloane Stephens.

The 20-year old Stephens used to look up to Williams, but in an upcoming ESPN the Magazine article, blasted her for not even being a friend, let alone a mentor as was the portrayal between the veteran Williams and the newcomer, Stephens.

“She’s not said one word to me, not spoken to me, not said hi, not looked my way, not been in the same room with me since I played her in Australia. And that should tell everyone something, how she went from saying all these nice things about me to unfollowing me on Twitter,” Stephens said.

The two played in the quarterfinals of the Australian Open in January with Stephens winning, 3-6, 7-5, 6-4. They then were teammates on the women’s Fed Cup after that.

“For the first 16 years of my life, she said one word to me and was never involved in my tennis whatsoever. I really don’t think it’s that big of a deal that she’s not involved now. If you mentor someone, that means you speak to them, that means you help them, that means you know about their life, that means you care about them. Are any of those things true at this moment?” Stephens said in the interview.

Stephens also bashed Serena and Venus in the interview, saying she had a poster of them as a child and waited three hours to get it signed, but both walked past numerous times. Williams decided to take to Twitter back in January after losing to Stephens to tweet, “I made you,” which was more than likely directed at Stephens.

With the French Open coming up at end of month, things are sure to heat up, especially if Williams and Stephens end up playing one another.